Size Brand Type 55mm Vivitar Polarizing 55mm Kenko 80A 55mm Kenko 81B 55mm Soligor UV 52mm Kitstar UV 1A 52mm Ampro Skylight 1A 49mm C-NPS Polarizing 49mm Kenko 1A 49mm Image 1A $3 each or 2 for $5; $5 for polarizing